42829-59-4Relevant articles and documents
Temperature-dependent study of the CH3C(O)O2 + NO reaction
Maricq, M. Matti,Szente, Joseph J.
, p. 12380 - 12385 (2007/10/03)
The kinetics of the reaction between acetylperoxy radicals and nitric oxide have been examined both by transient IR absorption and by time-resolved UV spectroscopy. The former technique enables measurements of NO loss and NO2 formation, whereas the latter provides data on the decay of acetylperoxy radicals, the secondary formation of methylperoxy radicals, and their conversion into methylnitrite. The two methods give consistent rate constants which are fit by the expression k1 = (2.1-0.8+1.4) × 10-12e(570±140)/T cm3 s-1. The room temperature value of k1 = (1.4 ± 0.2) × 10-11 cm3 s-1 is somewhat smaller than the currently recommended value, which is based on indirect determinations of k1. Measurements of the CH3O2 and NO2 yields indicate that the reaction proceeds exclusively to the products CH3C(O)O and NO2. The negative temperature dependence suggests that the reaction proceeds via an intermediate adduct that rearranges and dissociates into the products.
Oxidation of Sulfur Dioxide by Methylperoxy Radicals
Kan, Charles S.,Calvert, Jack G.,Shaw, John H.
, p. 1126 - 1132 (2007/10/02)
This study was made to resolve the apparent discrepancy between the finite rate constants observed for the CH3O2 reaction with SO2 in high-intensity flash photolysis and near zero values observed recently by us and others for this reaction in NO-free, CH3O2-SO2 experiments at low intensity.
